Wow. I understand seeing oneself in many descriptions of illnesses, especially mental illness. I have no idea where you fit on the DSM5. But I do know that many disorders have similar symptoms. Inability to focus is part of depression and, I think, anxiety. But if you did not have attention/focus issues as a child you probably don’t have Attention Deficit Hyperactivity Disorder (hypertension is high blood pressure)
I’m glad that you keep on writing and wish you the best possible health. Stay strong, friend.